0 0 0 00 AO 4= 0 b1 E B 0\=详 0 1 0 0010 0 (41A243A)其中4 0 b 1 b, = E B A O ( ), = A1 A2 A3 A4 = b b a a A 0 1 1 1 0 1 0 0 0 1 0 0 = b b a a A 0 1 1 1 0 1 0 0 0 1 0 0 = a a A 0 1 其中 = b b B 1 1 = 0 1 1 0 E = 0 0 0 0 O = 0 1 0 1 a 其中A = 1 0 1 2 a A = 1 0 0 3 b A = b A 1 0 0 4